David Smith (born 1956) is an English murderer, rapist and suspected serial killer who came to national prominence in 1999 when he was convicted of murdering a sex worker after having previously being acquitted of an "almost identical" murder six years previously. Cleared of the murder of 33-year-old west London sex worker Sarah Crump in 1993, Smith was found guilty in 1999 of the killing of 21-year-old Paddington sex worker Amanda Walker. Smith has since been linked to a number of other murders of sex workers across Britain.